| Kernel driver tps40422 |
| ====================== |
| |
| Supported chips: |
| |
| * TI TPS40422 |
| |
| Prefix: 'tps40422' |
| |
| Addresses scanned: - |
| |
| Datasheet: http://www.ti.com/lit/gpn/tps40422 |
| |
| Author: Zhu Laiwen <richard.zhu@nsn.com> |
| |
| |
| Description |
| ----------- |
| |
| This driver supports TI TPS40422 Dual-Output or Two-Phase Synchronous Buck |
| Controller with PMBus |
| |
| The driver is a client driver to the core PMBus driver. |
| Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. |
| |
| |
| Usage Notes |
| ----------- |
| |
| This driver does not auto-detect devices. You will have to instantiate the |
| devices explicitly. Please see Documentation/i2c/instantiating-devices for |
| details. |
| |
| |
| Platform data support |
| --------------------- |
| |
| The driver supports standard PMBus driver platform data. |
| |
| |
| Sysfs entries |
| ------------- |
| |
| The following attributes are supported. |
| |
| ======================= ======================================================= |
| in[1-2]_label "vout[1-2]" |
| in[1-2]_input Measured voltage. From READ_VOUT register. |
| in[1-2]_alarm voltage alarm. |
| |
| curr[1-2]_input Measured current. From READ_IOUT register. |
| curr[1-2]_label "iout[1-2]" |
| curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. |
| curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT |
| register. |
| curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT status. |
| curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. |
| curr2_alarm Current high alarm. From IOUT_OC_WARNING status. |
| |
| temp1_input Measured temperature. From READ_TEMPERATURE_2 register |
| on page 0. |
| temp1_max Maximum temperature. From OT_WARN_LIMIT register. |
| temp1_crit Critical high temperature. From OT_FAULT_LIMIT register. |
| temp1_max_alarm Chip temperature high alarm. Set by comparing |
| READ_TEMPERATURE_2 on page 0 with OT_WARN_LIMIT if |
| TEMP_OT_WARNING status is set. |
| temp1_crit_alarm Chip temperature critical high alarm. Set by comparing |
| READ_TEMPERATURE_2 on page 0 with OT_FAULT_LIMIT if |
| TEMP_OT_FAULT status is set. |
| temp2_input Measured temperature. From READ_TEMPERATURE_2 register |
| on page 1. |
| temp2_alarm Chip temperature alarm on page 1. |
| ======================= ======================================================= |
